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Magnetization Direction for Neodymium Magnets

Discs & Cylinders

Axially Magnetized

Diametrically Magnetized

Blocks

Block magnets are defined by three dimensions: Length, Width and Thickness. To be consistent, we define the Thickness dimension along the axis of magnetization. The thickness is usually the smallest dimension, but not always!

We're sometimes asked if we can provide block magnets magnetized through the length or width. Yes, we do have some long "bar" magnets, where the magnetization is in the longest dimension. We do still define this as the Thickness, though.

South on the Outside Face

Magnetized through Circumference

Magnetized through Thickness

Arc Magnetization with Poles on Inner & Outer Face

Note that the magnetization is along a straight axis, and is not truly radial. The lines do not converge at the center of the arc. When assembled, arc segments like this can be used to approximate a radially magnetized ring.

Circumferential Magnetization of Arc Segments

Again, the lines of magnetization are all parallel. The lines do not curve around the arc.